Unlock instant, AI-driven research and patent intelligence for your innovation.
Real-time energy collection-based relay network resource allocation method
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of energy collection and resource allocation, applied in the field of mobile communication
Inactive Publication Date: 2016-11-23
辛建芳
View PDF7 Cites 4 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0011] Aiming at the problems that the existing relay network resource allocation methods do not fully consider the performance improvement brought about by energy harvesting factors, joint relay selection and power allocation under the condition of energy causal constraints, real-time requirements, and practical application of low-complexity algorithms, this paper The invention proposes a resource allocation method based on real-time energy harvestingrelay network, joint relay selection and power allocation under the condition of comprehensive consideration of energy causal constraints, combined with energy-saving solutions brought by energy harvesting technology, and assisting low-complexity iterative algorithms , to maximize network performance for real-time communication between users
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0098] A resource allocation method based on a real-time energy harvesting relay network, characterized in that it includes:
[0101] The present invention is aimed at a special application scene, comes from practical application, and the scene setting is meticulous and reasonable, and has practical guiding significance. Consider a multi-relay cooperative communication scenario based on energy harvesting. In the scenario, there is an energy harvesting signal source Source (abbreviated as S), and N energy harvesting relay stations Relay (abbreviated as R i ,i=1,2,...,N) and a target communication terminal Destination (abbreviated as D), considering that there is no direct path between the energy harvesting signal source S and the target communication terminal D, it must pass through the energy harvesting relay station R i Cooperative forwarding, relay station R i The ampl...
Embodiment 2
[0126] The present invention is further improved on the basis of Embodiment 1. On the basis of using the Lagrangian multiplier algorithm, we can use the subgradient method in the process of each loop iteration, and select the gradual step length, so that the optimization is more accurate. Specifically, the Lagrangian factor in the Lagrangian form of the optimization problem P1 The iterative update method of the subgradient algorithm adopts the subgradient algorithm, which has lower complexity and is more efficient. The iterative update equation of the subgradient algorithm is
[0127] The Lagrangian factor in the Lagrangian form of the optimization problem P1 The iterative update method of the subgradient algorithm adopts the subgradient algorithm, which has lower complexity and is more efficient. The iterative update equation of the subgradient algorithm is
[0137] In order to simplify the algorithm, the invention greatly reduces the complexity of the algorithm without significantly reducing the system performance, can be used for real-time calculation, and can select a suboptimal solution in engineering application. The step 3 includes: adopting the GBD method to solve. Specifically,
[0138] Find out first On this basis, the optimization problem P2 is reduced again:
[0139] P 2 : max [ P R 1 , k , ... , ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention discloses a real-time energy collection-based relay network resource allocation method, and belongs to the technical field of mobile communication. The method comprises the following steps: systemscenario analysis and problem resolution; system mathematic model establishment; calculation of an optimal solution with an optimization method. The method is derived from a practical application for a special application scenario, and compared with a conventional relayselection method, has the advantages that high complexity and high network cost caused by multiple relays are eliminated, a single-relay node selection algorithm and a corresponding resource allocationalgorithm are researched from the point of easiness for practical application, energy-collection-based single-relay collaborative communication is considered, an expression for throughput in the scenario is deduced, optimal relay selection and power allocation are jointly considered, and the method has practical guiding significance.
Description
technical field [0001] The invention belongs to the technical field of mobile communication, and more specifically relates to a resource allocation method based on a real-time energy collection relay network. Background technique [0002] The cellular network structure proposed in the 1970s has been widely used in the following decades, but there is a very fatal shortcoming in the cellular network, that is, the quality of service (QoS) of users at the edge of the cell may be affected. to guarantee. These users may receive extremely weak signals, resulting in low communication quality, or require extremely large transmission power when transmitting signals. This situation may become more serious in the next generation communication system. The emergence of relay technology has solved this problem very well. Those nodes in the community that do not need to communicate temporarily can act as relay nodes for other users, or install fixed dedicated relay nodes in the community, ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More